National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Severe Thunderstorms and Excessive Rainfall Thursday

Severe thunderstorms posing a risk for strong gusts and/or large hail are possible across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic Thursday afternoon and evening. Excessive rainfall may bring flash and urban flooding over the Mid-Mississippi and Ohio Valleys, and Mid-Atlantic on Thursday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48°NLon: 103.78°WElev: 3898ft.

Fair

64°F

18°C

Humidity 60%
Wind Speed SW 5 mph
Barometer 30.03 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 8 Jul 11:35 pm MDT
Extended Forecast for

Lead SD

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Light southwest wind.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 80. Light and variable wind. Winds could gust as high as 17 mph. Chance of precipitation is 60%.

    High: 80 °F

    Mostly Sunny
    then T-storms
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 55. Calm wind. Winds could gust as high as 16 mph.

    Low: 55 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. Southeast wind around 6 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. Light south wind. Winds could gust as high as 16 mph.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. Light southwest wind.
Thursday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 80. Light and variable wind. Winds could gust as high as 17 mph. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 55. Calm wind. Winds could gust as high as 16 mph.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon. Winds could gust as high as 16 mph.
Friday Night
Mostly clear, with a low around 62. Southeast wind around 6 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 89. Light south wind. Winds could gust as high as 16 mph.
Saturday Night
Clear, with a low around 63.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 65.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 64.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 89.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 62.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.33°N 103.77°W (Elev. 5197 ft)
Last Update:
10:37 pm MDT Jul 8, 2026
Forecast Valid:
11pm MDT Jul 8, 2026-6pm MDT Jul 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation